Dr. Ahmed G. Abo-Khalil

Electrical Engineering Department

lighting system

any scheme used for illuminating a scene, usually for acquisition by a
digital system. Illumination is crucial to digital images, since even
illumination gradients that cannot be perceived by the eye can have an
influence on the results of digital processing. For inspection tasks and
document digitization, a uniform, reproducable, high level of lighting
is usually required. Other applications have other requirements for
uniformity, frequency, and intensity.

Structured lighting schemes are used to collect multiple images of a scene each having different illumination .

Strobe lights can be used to effectively freeze motion, and are useful for many visual inspection tasks.